Answer is: option1
\( \text{(A) } -10 \)Solution:
We are given the function:
\[ f(x) = (x^3 - 2x + 5)(x^{-2} + x^{-1}) \] Using the product rule: \[ f'(x) = (3x^2 - 2)(x^{-2} + x^{-1}) + (x^3 - 2x + 5)(-2x^{-3} - x^{-2}) \] First, compute individual terms:- \( g(1) = 1^3 - 2(1) + 5 = 4 \)
- \( g'(1) = 3(1)^2 - 2 = 1 \)
- \( h(1) = 1^{-2} + 1^{-1} = 1 + 1 = 2 \)
- \( h'(1) = -2(1)^{-3} - (1)^{-2} = -2 - 1 = -3 \)